CVE-2021-40859 Scanner.
Auerswald COMpact 5500R 7.8A and 8.0B Devices Backdoor
Free and read-only. Scan only sites you own or are allowed to test.
What This Check Does.
Read-only
It only asks your site for public pages, the way a browser would. Nothing is changed, uploaded or stored.
Up to 1 request
A small, fixed number of requests, so the check is quick and will not load your site.
Looks for CVE-2021-40859
It looks for the specific sign of this one vulnerability and ends with a clear answer: vulnerable, not vulnerable, or could not be determined.
About CVE-2021-40859. What It Means.
Auerswald COMpact 5500R 7.8A and 8.0B devices contain an unauthenticated endpoint ("https://192.168.1[.]2/about_state"), enabling the bad actor to gain backdoor access to a web interface that allows for resetting the administrator password.
FAQ
Common Questions.
Auerswald COMpact 5500R 7.8A and 8.0B Devices Backdoor. Auerswald COMpact 5500R 7.8A and 8.0B devices contain an unauthenticated endpoint ("https://192.168.1[.]2/about_state"), enabling the bad actor to gain backdoor access to a web interface that allows for resetting the administrator password.
Atlas sends up to 1 read-only request to your site and looks for the specific sign of CVE-2021-40859 in Auerswald COMpact 5500R Firmware. Nothing is changed, uploaded or stored on your site.
CVE-2021-40859 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing. Its CVSS score is 9.8.
Yes. The check only reads public pages, the same way a browser or a search engine would. Scan only sites you own or are allowed to test.
It means no sign of CVE-2021-40859 was found by this read-only check. It does not prove the site is free of other weaknesses.
Update Auerswald COMpact 5500R Firmware to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. The vendor links and details are in the CVE-2021-40859 briefing linked on this page.
Scan only sites you own or have written permission to test. A result of Not Vulnerable means this read-only check found no sign of CVE-2021-40859; it is not a guarantee that the site is secure.